Universal joint.



No. 893,281. PATENTED JULY l14, 1908.

l B. P. TEAL.

UNIVERSAL JOINT.

APPLICATION FILED FEB. 21, 1907. RIBNBWBD DBO. 16, 1907.

BENJAMIN F. TEAL, oF GLENsIDE, PENNSYLVANIA. j'

UNIVERSAL JOINT.

Specication of Letters Patent. j

M Patented .Iiy 14, i908.

. Application filed February 21, 1907, Serialo. 358,679. 'Renewed December 16, l1907. Serial No. 406,771;-

To all whom tmcy concern.'

Be it knownthat I, BENJAMIN F. TEAL, a citizen of the United States, residing at Grlenside, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Universal Joints; and I do declare lthe following to be a full, clear, and exact description of the invention, such as-will enable others skilled in the art to which it appertains to make and v use the saine.

This invention relates to universal joints.

j The object of the invention is in a thoroughly feasible and practical manner to revincrease the efficiency of universa joints.

The invention consists further in certain novel details of construction of a universal joint that will be hereinafter fully described and claimed.

In the drawings, forming a art ofvthis speciiication, and in which` like c aracters of reference indicate corresponding parts, Figure 1 isa view in'endelevation, partly in section, of a universal joint constructed in accordance with the present invention; Fig.

2 is a view in side elevation thereof; and Fig. 311s a view in plan.

' The joint comprises, vasusual, a yoke-1v with which is connected adriving shaft 2, a

' head 3 with which is connected a Vdriven shaft 4, anda ring 5. These parts, with the exception of certain changes in their construction to vadapt 'them to receivethe im- `provements'of the present. invention may be of the usual or any preferred construction,

and therefore, need` no detailed description;

The feature'of the present invention which differentiates this articular joint from those in common vuse is t at there is a novel form of trunnion employed for connecting the ring and yoke and the head and the riIlgi the object of which isto reduce friction, and to permit of a greater ran e of angular adjustment of Ile joint than is possible with nions are provided'with plain journals `subjected to s iding friction. The f'orm of antifriction bearings between the head and ring,

and the ring and the yoke are preferably the x same, thus, to render the parts interchangeable, thus to facilitate repairs when necessary.

, As shown in Fig. 1, the ring has combined with it in diametrical alinement,. two trunnions 6 which are threaded into the ring, thus-to permit of adjustment," the outer end of each of the'trunnions being provided with a nick 7 to receive a screw-driver'or other appropriate implement for seating the member.

he outer end of each trunnion is reduced' and 1proj ects into a concavity or socketformed on t e inner end of a ball-race member 9, and in the concavity, which is appropriately contoured for the pur ose, is disposed a series-of bearing-balls 10 t at are engaged by the reduced outer endof the trunnion. The race member 9 is threaded into an opening in the yoke, and is provided with a squared outerterminal 11l by which the race may be assembled with or detached from theyoke by theemployment of av suitable wrench. In order to lock the race 'in its adjustedposiover the outer lend of the race and is screwed .80 tion, a locking nutI 12 is provided which fits on to the threaded portion thereon.` The trunnions 13 and race 14 and locking nut 15 of the head and the ring are preferabv y of the saine construction as those, just described and operate in precisely thesame manner, so

that a reiteration of the` description of thesel parts is unnecessary;

It will be seen from theforegoing description, that accurate adjustments of the trunnions and the races may be secured notonly .for the purpose of centering and for-reducing friction, but also to take up any lost motion, so that steady and. positive operatonof the cou ling may at all times be secure f Iaving thus described lmy invention, what I claimas new is',-

i 1. A universal i jloint' comprising, a yoke, an'v element', anl osc atory-member interposed between the yoke and (element,'adjustable trunnions carried bysaid element'and oscillatory member,race members carried by .the

yoke and oscillatory member for engagement with the corresponding trunnions, and' anti- 4friction balls :arranged between! said trunnions and race members.

2. A universal l'loint comprising, a yoke, an

' 'member interposed the yoke' and oscillatory member for coperation with the corresponding trunnions, antifriction balls arranged between the trunmons and race members, and means for lock- 5 ing said members against movement.

3. A universal joint comprising, a yoke an clement, an oscillatory ring interposed between the yoke and element', adjustable trunnions carried by the element and ring,

10 adjustablerace members carried by the latter and yoke for cooperative engagement with the corresponding trunnions, and antin friction balls arranged between the trunnions and race members.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

BENJAMIN F. TEAL.

Witnesses:

CLINTON A. SowERs, J. KIRK SHoEsTER. 

